Improved machine for making wrought nails



:l tant JOHN TAGGART, or BOSTON, ASSIGNOH To DAvID wH1TON,Or BOSTON, AND BEN- JAMIN F. WTNGWOF WEST HOXBUHY, MASSACHUSETTS.

Lan/rs Parmi No. 88,753, ma April e, 1869.

. The Schedule referred to i these Letters Patent and making part of the same.

To all persons to whom these presents may come Beit known that I, JOHN TAGGART, of Boston, ot the county of Suffolk, and State of Massachusetts, have made-a new `and useful invention, having reference to Machinery for'Making Nails; and do hereby declare .the same to be fullydescribed in the following specilication, and represented in the accompanying drawings, of which- Figure l is a top view.

Figure 2, a front elevation.

Figure 3, a horizontal Section.

Figure 4, atransverse section. I

Figure 5, a rear elevation of a nail-cutting machine, provided with my invention.

The section represented in iig.f4 is taken through the vibrator, to be hereinafter described, and so as to exhibit it and the die-wheeler cutter-wheel of the ma chine. v

Figure 6 is another vertical and transverse section of the 'machine,'suchf being'taken through the oompound, or duplex header, to beA hereinafter-explained.

In such drawings, Adenotes the frame of the inachine, it being properly formed or constructed for sup'.

porting the operative parts. The nail-plate, or strip of metal to lbe -cutup into` nails, isto be introduced into the machine, or to the cuttingfdives thereof, by or through a chanuel'LorStrip,- guide, B', --arranged to stand at iight angles to the inner s uriace of a large disk or wheel, O, which is mounted on a horizontal or driving-shaft, I), the whole being arranged inthe frame in manner as represented.

rlbere is fixed within the `said wheel, within suitable sockets, and so as to project'from its inner face, two cutters, or dies, a a, they being inclined tothe face of the wheel, in manner as represented in Figure 7 ,Y which is a transverse -section of the wheel, taken through the cutting-ends, or edges of such two cutters.

Furthermore, there operates with Such wheel-cutters and strip-guide channels, a reciprocating duplex dieplate, E, which is arranged beneath the strip-guide channel. i

This die-plate E, at or near its rear end, is pivoted to the frame, and, near lits front end, rests upon a vibrator, F, which stands vertically in the frame A, and is pivoted'thereto, or, in other words, is supported on a centre-pin at c. (See fig. 4.) The vibrator supports the die-plate E, and, by moving with it, saves the'friction and wear which would result were the dieplate to rest o n an'immovablesurface.

At its inner end, the die-'plate has two cutters, or dies, d d, which, arranged in. 'manner as represented, are .to operate with the two cutters, a a, of the wheel, one die, d, being to actI with one of the cutters a, and the other die, d, beingv to operate with the other, so as to cut nail-blanks or wedges from Iaplate, in manner as indicated in Figure 8.

' In order to impart to the die-plate its` proper movements with the cutter-wh/eel, such die-plate has an arm, e, extended from it, and into a cam, or eccentric groove, f, made in the face ofthe cutter-wheel.

Furthermore, a tooth, g, projects from the middle of the top of' the vibrator F, and into a recess, h, made in the die-plate. Thus, during each revolution of the cutter-wheel, the die-plate will be moved into place with respect to one cutter of the wheel, and next into place with respect to the other of the said cutters, as it may be carried around so as to act on the nail-plate.

The upper edge ofthe vibrator consists Ot' two planes,

h i, making au obtuse angle with each other` the vertexv of which is at the middle of the vibrator, the same being so as to canse the die-plate, at the extreme of each of its movements, to rest flatly on one of these planes, whereby it will be supported to better advantage than were the top of the vibrator to be arched or curved.

There is combined with the said mechanism for cutting the nail-blanks from a plate, a mechanism for straightening and heading each of the said blanks, and discharging it from the machine, all of which may be thus described. l i. At or near the outer end of each cutter a of the wheel C, there is a cam, la, extended from the face of the Wheel. Y

These Vcams are to force away from the wheel-two elastic rests, G H, which, at their upper ends, bearagainst the inner face of the wheel, v

At their lower ends, these two restsl project over the .peripheries of the lowerrollers IAI, of two setsl K, I.

K', of griping-rollers, arranged as represented, and particularly in Figure 9, which isa top view ofthe gripingrollers and the elastic rests G H. i

The upper two (K K) of the griping-rollersare fixed on a horizontal shaft, L, the lower two, I I', being also fixed on another such shaft, M, and the two shafts are geared together, as shown at lm.

A worm-gear, n, on the shaft L, engages with a worm, O, xed on the driving-shaft D; consequently,

when the drivin -shaft is in revolution, the two sets of griping-rollers will be revolved.

0n each nail being severed from the nail-strip, such nail willbe driven down upon the topof that springrest which is immediately beneath the dies by which the nail may have been severed from the strip, the nail falling on the top Aof the rest, and against a lip, p, extended up from such top.

Next, one of two nipper-carriers, N N', will be advanced up to, and vwill seize the nail and remove it from the elastic rest, and take it down between one Set of the griping-rollers, between which it will be grasped during the process of heading it. v

These Dipper-carriers (shown at N N) play between the two spring-rests, and in a'space between the two pairs of griping-rollers, at their rear ends, such carriers are jointed to two'arms O O', which extend from two concentric shafts B Q.

Two other, or shorter arms, lr s, are projected from the concentric shafts, one arm going from one, and the other arm from the other of such shafts, in manner as r'epresen'ted.

These arms, by links t t, are connected with two arms, u u, extending from the yoke c of an eccentric, w, xed on the driving-shaft. Thus, the driving-shaft, while in revolution, will be caused to put each of the two nipper-carriers in movement, both -to and from the cutter-wheel.

Each nipper-carrier is to be supposed to be furnished at its front end with jaws, or a means of grasping the nail, in order that it may be drawn down by the carrier, and deposited in the bite of the griping-rollers, and with a small portion of it projecting from them, in order that such portion may be npsetby the header, and converted by it into a head to the nail.

The duplex or compound header, shown at R, in ig. 6, consists of a-slide-rod, o', and two hammers, w w', projecting therefrom, and arranged, `with respect to the griping-rollers, in manner as represented.

It is supported in guides, or boxes a: x, and is jointed at one arm, y, of a bentlever, S.'

The other arm, z, of the said lever is jointed to the -pitmanc of a yoke, b', of an eccentric, c', which is iixed onthe driving-shaft. While in revolution, the drivingshaft, by means of the eccentric, its yoke pitman, and the said bent lever, willcause the header to have a reciprocatin g rectilinear motion, so as-alternately to carry each hammer ofthe header toward and away from the next adjacent pair of griping-rollers.

Each nail, after having been severed from the strip of metal, will be thrown down upon one of the springrests, which in due time will be moved'out of the way of the next descending cutter of the wheel. The nail will next be seized by one ofthe carriers, and by it will be conveyed down between a pair ofthe griping-rollers, and, while griped by them,'will be headed. Finally, by the motions of such rollers, the nail will be discharged from the machine.v Theserollers will also operate to straighten the nail.

The nail-strip is to be forced toward and kept against the inner face of 'the cutter-wheel While it may be in operation, such being accomplished either by manual power, or by suitable mechanism, applied to the stripguide groove."

' The rapidity with which the wheel may be revolved will canse the machine to operate to great advantage in cutting nails from a strip. There is no turning over of the strip, as in ordinary nail-machines.

The Vibratory die-plate, th'e cutter-wheel, and the cutters of the two, arranged to operate together, as set forth, enable the strip to be fed forward without being revolved or turned, preparatory to the cutting of each successive nail from it.

In the said machine, I claim- The. combination of the vibrator F, as described, with the die-plate E, its cutters d d, and the cutter-Wheel O, and its cutters, arranged as explained. h

Also, the combination of each or both the springrests G E, and the operative cam or cams k thereof', with the cutter-wheel C, andthe reciprocating die-plate E, provided with'cutters and operative mechanism, as set forth.

Also, the combination and arrangement ofthe cutterwheel C, the die-plate E, the elastic or spring-rests G H, the cams k k, the pairs of griping-rollers I I', K K, and the duplex header R.

Also, the combination and arrangement of the carriers N N', the pairs of griping-.rollers I I', K K', the spring-rests G H, the die-plate E, and the cutter-wheel O, the whole being provided with operative mechanism, substantially as described.

Also, the combination applied to the driving-shaft and the carriers', and employed for operating the latter, such consisting of the eccentric fw, its yoke v and arms u u, the links t t, the concentric shafts P Q, and

their arms O O', lr s.

J @EN TAGGART. Witnesses:

R. H. EDDY,

F. REALE, Jr. 

